The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 29, 2000
Filed:
Sep. 30, 1996
Applicant:
Inventor:
Robert J Kruckemeyer, Houston, TX (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B42D / ;
U.S. Cl.
CPC ...
283 70 ; 283 67 ; 283 72 ; 283 75 ; 283904 ; 34082534 ; 380 23 ; 380 54 ; 705-1 ;
Abstract
A method for deterring forgeries and authenticating signatures placed on any document or other object (collectively 'Item') is disclosed. A first two dimensional bar code or forgery-proof diffraction grating pattern or similar information bearing medium (Electronic Fingerprint or 'EF') is issued to a person whose signature is being protected ('Principal') by a central registrar ('CR'). A personal identification number ('PIN') which has been assigned by the CR to the Principal is encoded on the EF. The PIN remains constant and is encoded on all EFs distributed to the Principal.